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unit issue in radiation routine (mwco2/mwdry)

Dear Forum,I am reading in a GHG (varying CO2) in unit [mol/mol] and write it to the history output in the radiation routine where the shortwave and longwave calculations are performed. However I see a constant factor difference between the input and output value: ~1.5190So the variable of unit [mol/mol]*1.5190 is passed to the shortwave and longwave calculations. Is this conversion factor the ratio of mwdry and mwco2 and the correct unit to be used in the radiation calculations? Thanks!
 
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